fix memory leak

.vs/ProjectSettings.json

@@ -0,0 +1,3 @@
+{
+  "CurrentProjectSetting": "无配置"
+}

.vs/VSWorkspaceState.json

@@ -0,0 +1,18 @@
+{
+  "ExpandedNodes": [
+    "",
+    "\\02.FactoryMethod",
+    "\\02.FactoryMethod\\2.Code",
+    "\\03.AbstractFactory",
+    "\\03.AbstractFactory\\2.Code",
+    "\\04.BuilderPattern",
+    "\\04.BuilderPattern\\2.Code",
+    "\\05.PrototypePattern",
+    "\\05.PrototypePattern\\2.Code",
+    "\\06.Singleton",
+    "\\06.Singleton\\2.Code",
+    "\\06.Singleton\\2.Code\\Singleton"
+  ],
+  "SelectedNode": "\\06.Singleton\\2.Code\\Singleton\\main.cpp",
+  "PreviewInSolutionExplorer": false
+}

01.SimpleFactory/2.Code/main.cpp

@@ -10,11 +10,21 @@ int main()
 	AbstractSportProduct *product = NULL;
 
 	product = fac->getSportProduct("Basketball");
+	if (product) {
+		delete product;
+	}
 
 	product = fac->getSportProduct("Football");
+	if (product) {
+		delete product;
+	}
 
 	product = fac->getSportProduct("Volleyball");	
+	if (product) {
+		delete product;
+	}
 
+	delete fac;
 	system("pause");
 	return 0;
 }

02.FactoryMethod/2.Code/main.cpp

@@ -11,12 +11,33 @@ int main()
 
 	fac = new BasketballFactory();
 	product = fac->getSportProduct();
+	if (fac)
+	{
+		delete fac;
+	}
+	if (product) {
+		delete product;
+	}
 
 	fac = new FootballFactory();
 	product = fac->getSportProduct();
+	if (fac)
+	{
+		delete fac;
+	}
+	if (product) {
+		delete product;
+	}
 
 	fac = new VolleyballFactory();
 	product = fac->getSportProduct();	
+	if (fac)
+	{
+		delete fac;
+	}
+	if (product) {
+		delete product;
+	}
 
 	system("pause");
 	return 0;

03.AbstractFactory/2.Code/main.cpp

@@ -10,10 +10,16 @@ int main()
 	fac = new BasketballFactory();
 	ball = fac->getBall();
 	shirt = fac->getShirt();
+	delete fac;
+	delete ball;
+	delete shirt;
 
 	fac = new FootballFactory();
 	ball = fac->getBall();
 	shirt = fac->getShirt();
+	delete fac;
+	delete ball;
+	delete shirt;
 
 	system("pause");
 	return 0;

04.BuilderPattern/2.Code/BuilderPattern.h

@@ -9,18 +9,18 @@ using namespace std;
 class House
 {
 public:
-	House(){}
-	void setFloor(string iFloor){
+	House() {}
+	void setFloor(string iFloor) {
 		this->floor = iFloor;
 	}
-	void setWall(string iWall){
+	void setWall(string iWall) {
 		this->wall = iWall;
 	}
-	void setRoof(string iRoof){
+	void setRoof(string iRoof) {
 		this->roof = iRoof;
 	}
 	//打印House信息
-	void printfHouseInfo(){
+	void printfHouseInfo() {
 		printf("Floor:%s\t\n", this->floor.c_str());
 		printf("Wall:%s\t\n", this->wall.c_str());
 		printf("Roof:%s\t\n", this->roof.c_str());
@@ -35,9 +35,17 @@ private:
 class AbstractBuilder
 {
 public:
-	AbstractBuilder(){
+	AbstractBuilder() {
 		house = new House();
 	}
+	virtual ~AbstractBuilder()
+	{
+		if (house != nullptr)
+		{
+			delete house;
+			house = nullptr;
+		}
+	}
 	//抽象方法：
 	virtual void buildFloor() = 0;
 	virtual void buildWall() = 0;
@@ -51,20 +59,28 @@ public:
 class ConcreteBuilderA :public AbstractBuilder
 {
 public:
-	ConcreteBuilderA(){
+	ConcreteBuilderA() {
 		printf("ConcreteBuilderA\n");
 	}
+	~ConcreteBuilderA()
+	{
+		if (this->house != nullptr)
+		{
+			delete house;
+			house = nullptr;
+		}
+	}
 	//具体实现方法
-	void buildFloor(){
+	void buildFloor() {
 		this->house->setFloor("Floor_A");
 	}
-	void buildWall(){
+	void buildWall() {
 		this->house->setWall("Wall_A");
 	}
-	void buildRoof(){
+	void buildRoof() {
 		this->house->setRoof("Roof_A");
 	}
-	House *getHouse(){
+	House *getHouse() {
 		return this->house;
 	}
 };
@@ -73,20 +89,28 @@ public:
 class ConcreteBuilderB :public AbstractBuilder
 {
 public:
-	ConcreteBuilderB(){
+	ConcreteBuilderB() {
 		printf("ConcreteBuilderB\n");
 	}
+	~ConcreteBuilderA()
+	{
+		if (this->house != nullptr)
+		{
+			delete house;
+			house = nullptr;
+		}
+	}
 	//具体实现方法
-	void buildFloor(){
+	void buildFloor() {
 		this->house->setFloor("Floor_B");
 	}
-	void buildWall(){
+	void buildWall() {
 		this->house->setWall("Wall_B");
 	}
-	void buildRoof(){
+	void buildRoof() {
 		this->house->setRoof("Roof_B");
 	}
-	House *getHouse(){
+	House *getHouse() {
 		return this->house;
 	}
 };
@@ -95,12 +119,20 @@ public:
 class Director
 {
 public:
-	Director(){}
+	Director() :builder(nullptr) {}
+	~Director()
+	{
+		if (this->builder != nullptr)
+		{
+			delete builder;
+			builder = nullptr;
+		}
+	}
 	//具体实现方法
-	void setBuilder(AbstractBuilder *iBuilder){
+	void setBuilder(AbstractBuilder *iBuilder) {
 		this->builder = iBuilder;
 	}
-	House *construct(){
+	House *construct() {
 		builder->buildFloor();
 		builder->buildWall();
 		builder->buildRoof();

04.BuilderPattern/2.Code/main.cpp

@@ -14,6 +14,7 @@ int main()
 	director->setBuilder(builder);
 	house = director->construct();
 	house->printfHouseInfo();
+	delete builder;
 
 	//寧땍야竟쉔芚諒B
 	builder = new ConcreteBuilderB();
@@ -22,5 +23,9 @@ int main()
 	house->printfHouseInfo();
 
 	system("pause");
+
+	delete director;
+	delete builder;
+
 	return 0;
 }

05.PrototypePattern/2.Code/main.cpp

@@ -48,5 +48,9 @@ int main()
 	jungleWork->printWorkInfo();
 
 	system("pause");
+
+	delete singleWork;
+	delete jungleModel;
+	delete jungleWork;
 	return 0;
 }